Skill:
1. The sweet potato flour used to make hot and sour noodles needs to be soaked in water in advance until soft. If you need to use it in a hurry, you can soak it in warm water, which can save the time of soaking the sweet potato flour.
2. The soybeans used to make hot and sour noodles should be soaked in water for about two hours before frying, and then fried in an oil pan until crispy. In addition, the peanuts should also be fried in the pot. When frying peanuts and soybeans, the oil temperature should not be too hot to avoid burning.